a Department of Environmental Studies, Graduate School of Environmental Studies, Tohoku University, Aramaki-Aoba 6-6-07, Aoba-ku, Sendai 980-8579, Japan b Department of Chemistry, Guru Nanak Dev University, Amritsar 143005, India
Abstract:
A series of novel bisthiacalix[4]arenes with diimine linkages of different aromatic or heteroaromatic dialdehydes have been synthesized. The structure of one of the bisthiacalixarene has been analyzed by X-ray crystallography. These molecules quantitatively extract silver ion from aqueous into organic phase under neutral conditions.